“Did I mention his mom is amazing? We love you for welcoming him,” Weiner wrote.

The Post first reported in September that the couple was having a boy, months after Weiner’s political career crashed and burned in an embarrassing sexting scandal that forced him to resign from Congress.

Little Jordan had a good shot at growing up in Gracie Mansion until his dad on May 27 tweeted a lewd crotch shot of himself to a 21-year-old Twitter follower.

He later admitted to several inappropriate online relationships with women before giving up his seat in Congress — and his dream of being New York’s next mayor.

Weiner, 47, said he never had physical contact with any of the women. The scandal broke before the couple’s first wedding anniversary.

Sources close to the family have said the cad dad is already in big debt to the baby boy.

If it weren’t for the pregnancy, Abedin, a top aide to Secretary of State Hillary Rodham Clinton, might have walked out on Weiner quicker than he could tweet an apology, the sources said.

Camp Clinton has already ostracized the former congressman, whose Democratic Queens/Brooklyn seat ended up in the hands of Republicans, The Daily reported this month.

But the Clinton crew can’t totally shake him because he’s married to Abedin, the iPad newspaper reported.

Former President Bill Clinton officiated at the Weiner-Abedin wedding on Long Island.

Hillary was among the guests at a Washington, DC, baby shower Saturday for Abedin, 36, that included Sen. Kirsten Gillibrand and Democratic National Committee chair Debbie Wasserman Schultz.

The couple had been spotted in public several times since the scandal, including during an Parisian “babymoon” and on a walk through Forest Hills, Queens, where they were overheard discussing boys’ names.